Influence of Metallurgical Treatment on Properties of Ductile Cast Iron GJS 400-18 LT

Abstract:

Cast iron with spheroidal graphite is a very good constructional material. Production of castings from standard kinds of nodular cast irons is quite good managed, but manufacturing of mark GJS 400-18 LT with excelent strength and plastic properties by minus temperatures is complicated, because it reacts very sensitively on the changing of melting conditions and metallugical treatment. The contribution is focused on an observation of changing of structure and mechanical properties by different ways of metallurgical treatment. In operating conditions of foundry three series of melts were made. From every melt the mould with testing pieces „Y“ with dimensions 25 x 40 x 140 mm was poured. Tensile test, impact test and metalographic analyse were realized on the test samples.

• Periodical: Key Engineering Materials (Volume 635)
• Pages: 177-181
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.635.177
• Online since: December 2014
• Authors: Marianna Bartošová*, Alena Pribulová, Jozef Bibko, Peter Futáš
• Keywords: Ductile Cast Iron, Ferrite, Inoculation, Modification, Nodularity, Nodularization

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